EXT4-fs warning (device loop1): read_mmp_block:115: Error -117 while reading MMP block 0
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BUG: KCSAN: data-race in __find_get_block / has_bh_in_lru

read-write to 0xffff888237d2b990 of 8 bytes by task 2368 on cpu 1:
 bh_lru_install fs/buffer.c:1340 [inline]
 __find_get_block+0x438/0x8c0 fs/buffer.c:1403
 bdev_getblk+0x34/0x420 fs/buffer.c:1423
 __getblk include/linux/buffer_head.h:355 [inline]
 sb_getblk include/linux/buffer_head.h:361 [inline]
 __ext4_get_inode_loc+0x30f/0x8f0 fs/ext4/inode.c:4369
 ext4_get_inode_loc fs/ext4/inode.c:4497 [inline]
 ext4_reserve_inode_write+0xb0/0x200 fs/ext4/inode.c:5728
 __ext4_mark_inode_dirty+0x8e/0x440 fs/ext4/inode.c:5905
 ext4_dirty_inode+0x91/0xb0 fs/ext4/inode.c:5942
 __mark_inode_dirty+0x16d/0x7e0 fs/fs-writeback.c:2477
 generic_update_time fs/inode.c:1907 [inline]
 inode_update_time fs/inode.c:1920 [inline]
 touch_atime+0x231/0x350 fs/inode.c:1992
 file_accessed include/linux/fs.h:2459 [inline]
 iterate_dir+0x2e1/0x310 fs/readdir.c:113
 __do_sys_getdents64 fs/readdir.c:409 [inline]
 __se_sys_getdents64+0x88/0x1a0 fs/readdir.c:394
 __x64_sys_getdents64+0x43/0x50 fs/readdir.c:394
 x64_sys_call+0x2997/0x2d30 arch/x86/include/generated/asm/syscalls_64.h:218
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff888237d2b990 of 8 bytes by task 5536 on cpu 0:
 has_bh_in_lru+0x35/0x1f0 fs/buffer.c:1510
 smp_call_function_many_cond+0x2f6/0xc50 kernel/smp.c:808
 on_each_cpu_cond_mask+0x3c/0x90 kernel/smp.c:1023
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x2a/0x30 fs/buffer.c:1519
 invalidate_bdev+0x4f/0x80 block/bdev.c:94
 __ext4_fill_super fs/ext4/super.c:5674 [inline]
 ext4_fill_super+0x1788/0x39d0 fs/ext4/super.c:5699
 get_tree_bdev+0x253/0x2e0 fs/super.c:1614
 ext4_get_tree+0x1c/0x30 fs/ext4/super.c:5731
 vfs_get_tree+0x56/0x1d0 fs/super.c:1779
 do_new_mount+0x227/0x690 fs/namespace.c:3352
 path_mount+0x49b/0xb30 fs/namespace.c:3679
 do_mount fs/namespace.c:3692 [inline]
 __do_sys_mount fs/namespace.c:3898 [inline]
 __se_sys_mount+0x27f/0x2d0 fs/namespace.c:3875
 __x64_sys_mount+0x67/0x80 fs/namespace.c:3875
 x64_sys_call+0x2591/0x2d30 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0xffff888106f44af8 -> 0xffff88811d5e6ea0

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 5536 Comm: syz-executor.1 Tainted: G        W          6.9.0-rc3-syzkaller-00286-g5939d45155bb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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